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How do I apply a perspective transform to a UIView?
...ere, is to directly access one of the matrix cells of the CATransform3D (m34). Matrix math has never been my thing, so I can't explain exactly why this works, but it does. You'll need to set this value to a negative fraction for your initial transform, then apply your layer rotation transforms to ...
How can I improve my paw detection?
...never actually displayed)
im = ax.imshow(infile.next()[1])
# Make 4 rectangles that we can later move to the position of each paw
rects = [Rectangle((0,0), 1,1, fc='none', ec='red') for i in range(4)]
[ax.add_patch(rect) for rect in rects]
title = ax.set_title('Time 0.0 ms')
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Multiple columns index when using the declarative ORM extension of sqlalchemy
...s works fine
– yorjo
Jul 12 '11 at 14:57
6
What happens if you have a dictionary for table_args l...
John Carmack's Unusual Fast Inverse Square Root (Quake III)
...Quake III source code which calculates the inverse square root of a float, 4x faster than regular (float)(1.0/sqrt(x)) , including a strange 0x5f3759df constant. See the code below. Can someone explain line by line what exactly is going on here and why this works so much faster than the regular i...
Why are margin/padding percentages in CSS always calculated against width?
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Ryan KinalRyan Kinal
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What is the maximum possible length of a query string?
...th of a URL in Internet Explorer is 2,083 characters, with no more than 2,048 characters in the path portion of the URL. Attempts to use URLs longer than this produced a clear error message in Internet Explorer.
Microsoft Edge (Browser)
The limit appears to be around 81578 characters. See URL Length...
Purpose of #!/usr/bin/python3
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edited May 26 at 14:06
Mohammed Mishal
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answered Oct 6 '11 ...
Python Logging (function name, file name, line number) using a single file
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Rose Perrone
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answered Jun 11 '12 at 4:29
Matthew Schinc...
How can I see all the issues I'm watching on Github?
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lasec0203
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answered Apr 21 '19 at 10:30
apaatsioapaatsio
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MySQL stored procedure vs function, which would I use when?
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edited Jan 6 '17 at 22:41
Eng.Fouad
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answ...